package xzy.fping.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {
    public String paymentInfoOK(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfoOK,id:" + id + "  (*^_^*)";
    }

    @HystrixCommand(fallbackMethod = "paymentInfoTimeoutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")
    })
    public String paymentInfoTimeout(Integer id) throws InterruptedException {
        int time = 13;
        //int age = 10 / 0;
        TimeUnit.SECONDS.sleep(time);
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfoTimeout,id:" + id +
                "  (*^_^*)" + "  耗时（秒）：" + time;
    }

    public String paymentInfoTimeoutHandler(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + "  paymentInfoTimeoutHandler,id:" + id + "  (ㄒoㄒ)~~";
    }

    /*
     * ================================服务熔断
     */

    @HystrixCommand(fallbackMethod = "paymentCircuitBreakerFallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),//请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),//时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")//失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id) {
        if (id < 0) {
            throw new RuntimeException("id 不能为负数");

        }
        String serialNo = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "  调用成功，流水号：" + serialNo;
    }

    public String paymentCircuitBreakerFallback(Integer id) {
        return "id 不能为负数,请稍后再试，/(ㄒoㄒ)/~~";
    }

}
